[Linux] Ubuntu12.10 root User Logon Settings

[Linux] Ubuntu12.10 root User Logon Settings 1. root logon problem: ubuntu12.10 by default, root user logon is not allowed. Only common user and guest logon can be seen in the logon window. Solution: 1) switch to the superuser mode (set the superuser password: sudo passwd root) su 2) and run vi/etc/lightdm. conf added: greeter-show-manual-login = true allow-guest = false. The entire configuration file after modification is: [html] [SeatDefaults] greeter-session = unity-greeter user-session = ubuntu greeter-show-manual-login = true # manually enter the user name and password for logging on to the system. allow-guest = false # logon from guest is not allowed. 3) restart ubuntu. The "login" option will be available in the logon window. At this time, we can log on through the root account. 2. The root cause of this problem is that pulseaudio is not started after root login. Add the root user to the pulse-access group: sudo usermod-a-G pulse-access root, then modify the configuration file/etc/default/pulseaudio, and set PULSEAUDIO_SYSTEM_START to 1.